Stem-winding and stem-setting watch.



W. E. PORTER. STEM WINDING AND STEM SETTING WATCH. APPLICATION FILED MAY 25,1914.

1,107,839, Patented Aug. 18, 19M

THE AORRIS PETERS 60.. PHOTO-LITHOY, WASHINGTON, D c,

UNITED STATE? PATENT OFFICE.

WILSON n. ronmn, on NEW HAVEN, commcrrcu'r, Assmnon'romwmm'om co., or NEW HAVEN, connnc'rrcuna conronn'rron.

STEM-WINDING AND STBK-8E'1'I'ING"WATOH.

To all whom it may concern:

Be it known that 1, WILSON E. Pon'rnn, a citizen of the United States, residing at New Haven, in the county of New Haven and State of Connecticut, have invented a new and useful Improvement in StemWinding and Stem-Setting Watches; and I do hereby declare the following, when taken in connection with the accompanying drawings and the characters of reference marked thereon, to be a full, clear, and exactdescription of the same, and which said drawings constitute part of this application, and represent, in-

Figure 1 a view in front elevation of a watch constructed in accordance with my invention. Fig. 2 a view of the watch with its dial removed, with its pendant in vertical section and with its parts in their normal or winding positions in which the winding-and-setting stem is at the limit of its inward excursion. view of the watch with its parts in position for setting. Fig. 4 a broken view of the watch in vertical transverse section. Fig. 5 a detached perspective view of the slotted bridge. Fig. 6 a detached view in side elevation of the winding-and-setting pinion with its integral bearing-hub and retainingflange. Fig. 7 a plan view thereof. Fig. 8 a broken view in elevation of the upper edge of the front movement-plate. Fig. 9 a corresponding view of the upper edge of the rear movement-plate.

My invention relates to an improvement in that class of stem-windin and stem-setting watches which are set y pulling out the stem and in particular to the watch shown and described in United States Patent No. 1,054,447 granted February 25, 1913, on my application.

The object of my present invention is to improve my patented watch with particular reference to facility of manufacture and to reducing the number of its parts, whereby I secure an economy of manufacture and produce a watch more readily assembled in the first instance and more readily disassembled for repairs.

With these ends in View, my invention consists in a stem-winding and stem-setting watch having certain details of construction and combinations of parts as will be herein- Fig. .3 a corresponding flange 3 and its rear edge shouldered to form an assembling-flange 4, these-flanges beinginserted into tangential slots Tend '8 formed in the upper edges of the front and rear movement-plates 5 and 6.

tween the upper edges of the said plates at a right angle to the plane of the watch, is

formed withv a. 'centrally'arranged transverse clearance slot 9 leading into it from its front edge and having a rounded rear or innerend. On account of the open charactor of thesaid slot 9, it permits-the lateral application to-and removal from the bridge of, the winding-and-setting pinion 10' which is formed with a depending, concentric bearing-hub 11 thelower end of which tenminates in an annular retaining-flange '12. The bearing-hub 11 aforesaid is just enough smaller in diameter than the width of the slot 9 to enter the same, and just enough longer than the thickness of the bridge 2 to permit the wheel 10 to rotate freely. The said wheel 10 and hub 11 are formed with a square central opening 13 receiving the squared inner end 14 of a longitudinally movable and rotatable winding-and-setting stem 15 the outer end of which is furnished with a crown 16 and which is provided near its inner end with an operating oone 17 coacting with a beveled finger 18 formed upon the outer end of an arm 19 turned inward through a notch 20 in the front movementplate 7 from the upper end of a yoke 21 oscillating upon the body of a shouldered stud 22 having at its outer end a large head 23 which holds in place a winding-and-setting wheel 24 mounted upon the said stud the inner end of which is furnished with a rivet 25 which is headed down upon the inner face of the front movement-plate 7. The said yoke 21 oscillates upon the stud 22 and carries upon its lower end an intermediate winding-and-setting wheel 26 constantly maintained in mesh with the said winding-and-setting wheel 24 and normally in mesh with the main winding wheel 27 by a, yoke-spring 28 applied to the inner face Patented Aug.18,' 1914.

The said bridge 2 thus adapted to be interposed be of the plate 7 and engaged at its inner end with the lower edge of an arm 29 formed upon the outer edge of the yoke 21 and turned inward through a slot 30 in the movement-plate 7. The said spring 28 also operates to throw the finger 18 inward with respect to the cone 17 and maintain it in constant engagement therewith. When the stem 15 is pulled outward by the crown 16 against the tension of the spring 28, the yoke 21 is swung outward into the position in which it is shown in Fig. 3, whereby it is demeshed from the main winding-wheel 27 and intermeshed with a setting wheel 3i mounted upon a stud 32 in the front movement-plate and constantly in mesh with a dial-wheel 33 which meshes into and is driven by a cannon-pinion 84 mounted on the center-arbor35. The said dial-wheel 33 carries a dial-pinion 36 which meshes into and drives the hour wheel 37. The main winding-wheel 27 is retained in place by a spring bridge 38 secured by a screw 39 to the front movement-plate 7 and formed with a slot e0 clearing the main winding-arbor e1.

It will be understood from the foregoing that the winding-and-setting pinion 10, the bearing-hub 11 and the retaini11gfiange 12 are made in one piece, this being made pos sible by the provision of the bridge 2 with an open assembling-slot 9 permitting the lateral application, as one piece of the Wheel 10, hub 11 and flange 12, to the bridge, whereas in the watches of the prior art it has been necessary to make the flange 12 in the form of a washer and rivet it to the hub 11 after the same has been passed through a circular bearing-opening in the bridge. Under my improved construction, the number of parts and operations are reduced and a more accurate construction secured. part comprising the wheel 10, hub 11 and flange 12 may be entirely made in an auto matic machine and applied to and removed from the bridge 2 as a unitary part.

In a stenrwinding and stem-setting watch, the combination with the front and rear movement-plates thereof, of a bridge interposed between the said plates near the upper edges of the same and formed with an open assembling-sloh'and a winding-andsetting pinion provided with a hub and a retaining-flange adapted. to be laterally applied to and removed from the bridge asa unitary part, through the open slot thereof.

In testimony whereof, I have signed this specification in the presence of two subscribing witnesses.

WILSON E. PORTER.

Witnesses CLARA L. WEED, M. P. NICHOLS.

Copies of this patent may be obtained for five cents each, by addressing the Gommissioner of Patents, Washington, D. G.

The 

